CN219193748U - Automatic production device for number plate - Google Patents

Automatic production device for number plate Download PDF

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Publication number
CN219193748U
CN219193748U CN202320718747.5U CN202320718747U CN219193748U CN 219193748 U CN219193748 U CN 219193748U CN 202320718747 U CN202320718747 U CN 202320718747U CN 219193748 U CN219193748 U CN 219193748U
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machine
word stock
automatic
plate
production device
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CN202320718747.5U
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Inventor
王岩松
和江镇
方志斌
熊星宇
丁德宽
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Focusight Technology Co Ltd
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Focusight Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model relates to a number plate production device, and provides a number plate automatic production device which aims at solving the problems of low automation degree and low positioning precision of the existing number plate production device and comprises a feed butt joint conveying line, a clapping plate shaping machine, a detection waste removing part sleeve, a label machine feeding machine, a label machine, a pressing feeding machine, a number plate automatic pressing machine, a thermoprinting machine and a number plate detection machine which are connected in sequence; the automatic stacking and receiving machine has the characteristics of high automation degree, no stacking, high positioning precision and stable finished product quality.

Description

Automatic production device for number plate
Technical Field
The utility model relates to a number plate production device, in particular to an automatic number plate production device.
Background
The applicant submits an utility model patent with the application name of a license plate semi-finished product automatic production line in the 3 rd month 31 rd 2021, the patent number is 2021103438910, the application is a semi-automatic production line, the degree of automation has a large lifting space, meanwhile, the production line has some flaws, and particularly the problem of low positioning precision of a license plate automatic pressing machine when stations are switched back and forth.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problems of low automation degree and low positioning accuracy of the existing number plate production device, the automatic number plate production device is provided.
The technical scheme adopted for solving the technical problems is as follows: an automatic production device for license plates comprises an incoming material butt joint conveying line, a clapping plate shaping machine, a detection waste removing part sleeve, a signature machine feeding machine, a signature machine, a pressing feeding machine, an automatic license plate pressing machine, a thermoprinting machine and a license plate detection machine which are connected in sequence;
the detection waste removing part sleeve, the endorsement machine feeding machine and the endorsement machine are connected through a synchronous belt conveying line, and the tail end of the synchronous belt conveying line is provided with an automatic stacking and receiving machine which is used for collecting redundant materials under high productivity and plays a temporary buffering role.
Further, the pressing feeding machine comprises a translation material taking mechanism and a conveying mechanism, wherein the translation material taking mechanism is arranged above the conveying mechanism and comprises a translation material taking cylinder, the translation material taking cylinder and the conveying mechanism are horizontally arranged, a lifting material taking cylinder is vertically arranged at the telescopic end of the translation material taking cylinder, and a vacuum chuck is arranged at the telescopic end of the lifting material taking cylinder; the conveying mechanism comprises a conveying belt, the two sides of the conveying belt are provided with flange plates, and the two sides of the rear end of the conveying mechanism are provided with shaping cylinders relatively.
Further, the license plate automatic pressing machine comprises a first word stock and a second word stock, at least one positioning component is arranged on the bottom plate of the first word stock and/or the second word stock, the positioning component is vertically arranged on the bottom plate, a telescopic part on the positioning component penetrates through a through hole on the bottom plate to be matched with a lock hole block arranged on the inner side of the guide rail, and the first word stock and the second word stock are positioned and locked at corresponding work stop positions.
Further, at least one sensor is arranged on a first word stock and/or a second word stock of the license plate automatic pressing machine, at least two station identification pieces matched with the sensors are arranged outside the first word stock and/or the second word stock, the station identification pieces are respectively and correspondingly arranged at work stop positions of the first word stock and the second word stock, when the sensors sense the station identification pieces, signals are sent to a positioning assembly, a telescopic part on the positioning assembly penetrates through a through hole on a bottom plate to be matched with a lock hole block arranged on the inner side of a guide rail, and the first word stock and the second word stock are positioned and locked at the corresponding work stop positions.
Further, the sensor is arranged at the bottom or the side surface of the bottom plate, and the station identification piece is fixedly arranged at the inner side or the outer side of the rail below the bottom plate.
Further, the sensor is a groove type photoelectric induction switch, the station identification piece is an L-shaped or T-shaped metal piece, and the switch is started when the station identification piece touches the groove type photoelectric induction switch.
Further, when the positioning components are multiple, the multiple positioning components act synchronously.
The automatic production device for the license plates has the beneficial effects that 1, a semi-automatic production line is upgraded to be fully automatic, 2, an automatic stacking and receiving machine is arranged at the tail end of a synchronous belt conveying line for coping with peak capacity, and the problem of stacking is solved; 3. the feeding machine of the endorsement machine is provided with a shaping cylinder for secondary shaping, so that the quality of finished products can be ensured; 4. the automatic license plate pressing machine is provided with a positioning assembly, and an inductor and a station identification piece which are matched with each other, so that the automatic license plate pressing machine can achieve secondary positioning when a character library is switched, and the positioning precision is improved; in conclusion, the utility model has the characteristics of high automation degree, no stacking, high positioning precision and stable quality of finished products.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the incoming material butt-joint conveying line of the utility model.
Fig. 3 is a schematic structural view of the clapper shaper of the present utility model.
FIG. 4 is a schematic diagram of the structure of the detection waste removing part sleeve of the present utility model.
Fig. 5 is a schematic structural view of a feeding machine of the endorsement machine of the present utility model.
Fig. 6 is a schematic structural view of the timing belt conveyor line of the present utility model.
Fig. 7 is a schematic structural view of the automatic stacking and receiving machine of the present utility model.
Fig. 8 is a schematic structural view of the press-loading machine of the present utility model.
Fig. 9 is a schematic structural view of a translational reclaimer mechanism of a press feeder of the present utility model.
Fig. 10 is a schematic structural view of a conveying mechanism of a press feeding machine of the present utility model.
FIG. 11 is a schematic diagram of the structure of the single word stock of the automatic license plate pressing machine of the present utility model.
FIG. 12 is a schematic diagram of a double-word stock of the automatic license plate press of the present utility model.
Fig. 13 is a schematic diagram of the first word stock and the second word stock section of fig. 12.
Fig. 14 is a schematic view of the first word stock and second word stock base portions of fig. 13.
Fig. 15 is an enlarged partial view of the floor section of fig. 14.
Fig. 16 is a schematic structural view of a thermoprinting machine according to the present utility model.
FIG. 17 is a schematic diagram of a license plate detector according to the present utility model.
In the figure: 1. a material supply butt joint conveying line,
11. The external incoming material is in butt joint with the conveying line, 12. The reversing butt joint device, 13. The adjustable high feeding conveying line;
2. a clapping plate shaper,
21. Roller support, 22, roller side plates, 23, unpowered roller, 24, clapping plate shaping assembly;
3. detecting the waste removing part sleeve,
31. Detecting a conveying platform, 32, a double-vision detecting station and 33, and blocking the jacking component;
4. a feeding machine of a signature machine,
41. The feeding machine comprises a feeding machine frame, a lifting assembly and a material carrying assembly, wherein the lifting assembly and the material carrying assembly are arranged on the feeding machine frame;
5. an automatic stacking and receiving machine,
51. Stacker frame, 52, pushing pre-storing device, 53, stacking component, 54, fluent roller bar;
6. a synchronous belt conveying line,
61. Square tube support frames, 62, synchronous belt support groups, 63, guardrail assemblies and 64, driving motor groups;
7. a pressing feeding machine,
71. The device comprises a translation material taking cylinder, a lifting material taking cylinder, a vacuum chuck, a conveying belt, a flange plate and a shaping cylinder, wherein the translation material taking cylinder, the lifting material taking cylinder, the vacuum chuck, the conveying belt, the flange plate and the shaping cylinder are arranged in sequence, and the shaping cylinder is arranged in sequence;
8 license plate automatic pressing machine,
81. The device comprises a first word stock, a second word stock, a bottom plate, a lock hole block, a guide rail, a station identification piece, a groove type photoelectric sensing switch, a first locking cylinder, a second locking cylinder, a first locking cylinder and a second locking cylinder, wherein the first word stock, the second word stock, the bottom plate, the lock hole block, the guide rail, the station identification piece and the groove type photoelectric sensing switch are respectively arranged in sequence, the first locking cylinder and the second locking cylinder are respectively arranged in sequence, the station identification piece and the groove type photoelectric sensing switch are respectively arranged in sequence, the groove type;
9. a thermoprinting machine,
91. A loading and unloading carrying assembly 92, a vertical support thermoprinting machine device;
10. license plate detector,
101. The device comprises a feeding conveying line, a sucker manipulator assembly, a visual detection assembly, a double jacking assembly and a double discharging conveying line, wherein the sucker manipulator assembly and the visual detection assembly are respectively arranged in the feeding conveying line and the sucker manipulator assembly;
20. and the endorsement machine.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The automatic production device for the license plate shown in the figures 1 to 17 comprises a feed butt joint conveying line 1, a clapping plate shaping machine 2, a detection waste removing part sleeve 3, a label machine feeding machine 4, a label machine 20, a pressing feeding machine 7, an automatic license plate pressing machine 8, a thermoprinting machine 9 and a license plate detection machine 10 which are connected in sequence; the detection waste removing part sleeve 3, the endorsement machine feeding machine 4 and the endorsement machine 20 are in conveying connection through a synchronous belt conveying line 6, and an automatic stacking and receiving machine 5 is arranged at the tail end of the synchronous belt conveying line 6.
The incoming material butt joint transfer chain 1 mainly comprises an external incoming material butt joint transfer chain 11, a reversing butt joint device 12 and an adjustable height feeding transfer chain 13, the external incoming material butt joint transfer chain 11 and the adjustable height feeding transfer chain 13 are both conveyed by using a flat belt as a carrier, continuous and rapid material conveying can be met, the reversing butt joint device 12 is arranged at the joint of the external incoming material butt joint transfer chain 11 and the adjustable height feeding transfer chain 13, reversing and positioning are completed on an incoming material license plate through a clamping centering cylinder assembly and a limiting cylinder assembly in the reversing butt joint device 12, the reversing and positioning are common mechanical operation means, and meanwhile, the reversing butt joint device 12 is existing, so that internal illustration of the reversing butt joint device 12 is omitted.
The applicant submits an utility model patent with the application name of an automatic production line of semi-finished license plates at 3 months and 31 days of 2021, the patent number is 2021103438910, and a clapping plate shaper, a detection waste removing part sleeve, an automatic license plate pressing machine, a endorsement machine feeding machine and an endorsement machine are disclosed in the application, and the application can be regarded as a first-generation machine, and the application is a second-generation machine; the applicant submits an utility model patent with the application name of a license plate automatic detection device in 2021, 3 and 29 days, the patent number is 2021206229819, and a license plate detection machine in the application is disclosed; the applicant also submits an utility model patent with the application name of a feeding device of a license plate semi-finished product endorsement machine in 2021, 3 and 31 days, and the patent number is 2021206466778, and the endorsement machine feeding machine in the application is disclosed; the foregoing summary is provided to enable a simplified description of the disclosure.
The clapping plate shaping machine 2 comprises a roller bracket 21, wherein the roller bracket 21 is fixed with a roller side plate 22, and an unpowered roller 23 and two groups of clapping plate shaping assemblies 24 are arranged in the roller side plate 22;
the detection waste removing part sleeve 3 mainly comprises a detection conveying platform 31 which is in butt joint with the clapping plate shaper 2, the detection conveying platform 31 adopts a belt conveying line which is independently driven, a double-vision detection station 32 is arranged above the detection conveying platform 31 for detecting the number plate incoming materials, the rear section of the detection conveying platform 31 is provided with a blocking jacking component 33, and the blocking jacking component 33 mainly comprises a left group of waste removing and returning components, a right group of waste removing and returning components and four groups of blocking components which are positioned below the synchronous belt conveying line 6;
the synchronous belt conveying line 6 consists of a square pipe supporting frame 61, a plurality of groups of synchronous belt supporting groups 62, a guardrail assembly 63 and a driving motor group 64;
the endorsement machine feeding machine 4 mainly comprises a feeding machine frame 41, a lifting assembly 42 consisting of a plurality of groups of air cylinders and a material carrying assembly 43;
the automatic stacking and receiving machine 5 mainly comprises a stacker frame 51, a pushing pre-storing device 52, a stacking assembly 53 and a plurality of groups of fluent roller strips 54;
the pressing feeding machine 7 comprises a translation material taking mechanism and a conveying mechanism, wherein the translation material taking mechanism is arranged above the conveying mechanism and comprises a translation material taking cylinder 71, the translation material taking cylinder 71 and the conveying mechanism are horizontally arranged, a lifting material taking cylinder 72 is vertically arranged at the telescopic end of the translation material taking cylinder 71, and a vacuum chuck 73 is arranged at the telescopic end of the lifting material taking cylinder 72; the conveying mechanism comprises a conveying belt 74, two sides of the conveying belt 74 are provided with flange plates 75, and two sides of the rear end of the conveying mechanism are oppositely provided with shaping cylinders 76
Fig. 11 is a license plate automatic pressing machine of a single word stock, fig. 12 to 15 are license plate automatic pressing machines of double word stocks, the license plate automatic pressing machine 8 of the double word stock comprises a first word stock 81 and a second word stock 82, two positioning components are mounted on a bottom plate 83 of the first word stock 81 and/or the second word stock 82, the positioning components are vertically mounted on the bottom plate 83, a telescopic part on the positioning components passes through a through hole on the bottom plate 83 to be matched with a lock hole block 84 arranged on the inner side of a guide rail 85, and the first word stock 81 and the second word stock 82 are positioned and locked at corresponding working stop positions; the side of the bottom plate 83 of the first word stock 81 and/or the second word stock 82 is provided with a groove-shaped photoelectric sensing switch 87 as an inductor, the outer side of a guide rail 85 below the bottom plate 83 is provided with two L-shaped metal pieces as station identification pieces 86, one of the two station identification pieces 86 is arranged at the working stop position of the first word stock 81, the other is arranged at the working stop position of the second word stock 82, one is arranged at the front end of the rear section of the guide rail 85, the other is arranged at the front end of the rear section of the guide rail 85, the two positioning components are respectively a first locking cylinder 88 and a second locking cylinder 89, the first locking cylinder 88 and the second locking cylinder 89 synchronously stretch, after the groove-shaped photoelectric sensing switch 87 touches the station identification pieces 86, signals are sent to the positioning components, and the stretching parts on the positioning components penetrate through holes on the bottom plate 83 to be matched with locking hole blocks 84 arranged at the inner side of the guide rail 85, so that the first word stock 81 and the second word stock 82 are positioned and locked at the corresponding working stop positions.
The thermoprinting machine 9 comprises a thermoprinting machine frame, an upper and lower material carrying assembly 91 and a vertical supporting thermoprinting machine device 92;
license plate detection machine 10 includes detection machine frame, material loading transfer chain 101, sucking disc manipulator subassembly 102, fixes visual detection subassembly 103, two jacking subassembly 104 and two unloading transfer chain 105 in material loading transfer chain 101 rear end top.
When the equipment is running
S1: the semi-finished license plate is led to a material butt joint conveying line 1 from external equipment (a blanking machine), and the license plate is sent to a clapping plate shaping machine after the material butt joint conveying line 1 finishes butt joint and reversing;
s2: the clapping plate shaper 2 conveys the semi-finished product license plates to a shaping area through an unpowered roller 23, photoelectric sensors below the unpowered roller 23 in the shaping area sense incoming materials, a stop plate is lifted by an air cylinder to stop the semi-finished product license plates from advancing, and clapping plates on two sides are driven by the air cylinder to stretch and retract to clap plate shaping actions;
s3: after the shaping action is finished, the material baffle plate returns downwards, the number plate continues to move forwards to the detection conveying platform 31 for detecting the reject part sleeve 3, a photoelectric sensor receives an incoming material signal during forward conveying and feeds back the incoming material signal to the visual detection assembly 103 in the double-visual detection station 32, and a camera performs image acquisition and feeds back incoming material information to the blocking jacking assembly 33 at the rear end;
s4: after the number plate comes out of the detection station, the synchronous belt conveying line 6 and the detection conveying platform 31 finish the delivery of the incoming materials, and continuously drive the number plate to move to the blocking jacking assembly 33; the blocking jacking component 33 rejects the number plate through the received incoming material information before, when the incoming material is unqualified, the blocking cylinder under the synchronous belt conveying line 6 jacks up to block the unqualified number plate at the reject position of the synchronous belt conveying line 6, the jacking blocks under the limiting check components on two sides are jacked by the cylinder to separate the unqualified number plate from the synchronous belt conveying line 6, the waste storage component receives the jacked unqualified number plate, after the unqualified number plate is stored to a plurality of pieces, a photoelectric sensor feeds back a signal, and workers take away the unqualified number plate to finish reject actions;
s5: the qualified semi-finished product license plate is driven by a synchronous belt conveying line 6 to run to a endorsement machine feeding machine 4, after a sensor receives an incoming signal, a lifting component 42 drives the semi-finished product license plate to ascend and separate from the synchronous belt conveying line 6, a material taking and conveying component is driven by a linear module to run above the semi-finished product license plate, a suction disc is driven by a cylinder in the material taking and conveying component to finish material taking of the semi-finished product license plate, and the semi-finished product license plate is conveyed to an endorsing machine 20 by the linear module;
s6: the conveyed redundant products are driven to be conveyed to the tail part by a synchronous belt conveying line 6, the automatic stacking and receiving machine 5 is used for vertically receiving materials, and the received materials are taken away manually or mechanically and then put into a material receiving butt joint conveying line 1 to realize recycling;
s7: after finishing two-dimensional code signing on the semi-finished number plate, the signing machine 20 conveys the signing number plate to a receiving area of the pressing and feeding machine 7, a receiving area sensor receives an incoming material signal, a material taking and translating assembly cylinder stretches out, a lifting material taking cylinder 72 moves to the receiving area through a linear guide rail 85, the lifting material taking cylinder 72 stretches out, a vacuum chuck 73 is driven to finish receiving the signing number plate, the material taking and translating assembly cylinder withdraws, the signing number plate is conveyed to the pressing and feeding machine 7, and the pressing and feeding machine 7 conveys the signing number plate to the automatic license plate pressing machine 8;
s8: after the endorsed license plate is conveyed to a license plate automatic pressing machine 8, pressing is carried out, and the pressed license plate is conveyed to a discharge conveying line;
s9: the method comprises the steps that pressed number plates are conveyed to a thermoprinting machine 9 by a discharge conveying line, the thermoprinting machine 9 judges whether the received pressed number plates need thermoprinting according to number plate information acquired by a license plate visual detection assembly 103 in a license plate automatic pressing machine 8, after a front-back moving supporting plate of the thermoprinting machine 9 moves forwards to receive materials, a loading and unloading manipulator of the thermoprinting machine 9 conveys the pressed number plates to the supporting plate from the discharge conveying line of the license plate automatic pressing machine 8, the supporting plate withdraws to bring the pressed number plates to a thermoprinting machine 9 mechanism for thermoprinting, after thermoprinting is finished, the supporting plate moves forwards, the loading and unloading manipulator conveys the thermoprinted number plates to a loading belt of a license plate detection machine 10, and the number plates which do not need thermoprinting are conveyed to the loading belt of the license plate detection machine 10 directly from the discharge conveying line of the license plate automatic pressing machine 8;
s10: after the license plate detection machine 10 receives the incoming materials, the feeding belt conveys the license plates to be detected under the visual detection assembly 103, the detection camera detects the image information of the license plates, and the detected license plates are placed to the corresponding discharging streamline by the sucker manipulator assembly 102, so that the operation of the automatic license plate production device is completed.
The foregoing description is merely illustrative of specific embodiments of the utility model, and the utility model is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (7)

1. The utility model provides a number plate automatic production device which characterized in that: the automatic plate detection system comprises an incoming material butt joint conveying line, a clapping plate shaping machine, a detection waste removing part sleeve, a signature machine feeding machine, a signature machine, a pressing feeding machine, a license plate automatic pressing machine, a thermoprinting machine and a license plate detection machine which are connected in sequence;
the detection waste removing part sleeve, the endorsement machine feeding machine and the endorsement machine are connected through a synchronous belt conveying line, and the tail end of the synchronous belt conveying line is provided with an automatic stacking and receiving machine which is used for collecting redundant materials under high productivity and plays a temporary buffering role.
2. An automatic number plate production device as claimed in claim 1, wherein: the pressing feeding machine comprises a translation material taking mechanism and a conveying mechanism, wherein the translation material taking mechanism is arranged above the conveying mechanism and comprises a translation material taking cylinder, the translation material taking cylinder and the conveying mechanism are horizontally arranged, a lifting material taking cylinder is vertically arranged at the telescopic end of the translation material taking cylinder, and a vacuum chuck is arranged at the telescopic end of the lifting material taking cylinder; the conveying mechanism comprises a conveying belt, the two sides of the conveying belt are provided with flange plates, and the two sides of the rear end of the conveying mechanism are provided with shaping cylinders relatively.
3. An automatic number plate production device as claimed in claim 1, wherein: the automatic license plate pressing machine comprises a first word stock and a second word stock, at least one positioning assembly is arranged on a bottom plate of the first word stock and/or the second word stock, the positioning assembly is vertically arranged on the bottom plate, a telescopic part on the positioning assembly penetrates through a through hole on the bottom plate to be matched with a lock hole block arranged on the inner side of the guide rail, and the first word stock and the second word stock are positioned and locked at corresponding working stop positions.
4. A number plate automatic production device as claimed in claim 3, wherein: at least one sensor is arranged on a first word stock and/or a second word stock of the license plate automatic pressing machine, at least two station identification pieces matched with the sensors are arranged outside the first word stock and/or the second word stock, the station identification pieces are respectively and correspondingly arranged at work stop positions of the first word stock and the second word stock, when the sensors sense the station identification pieces, signals are sent to a positioning assembly, a telescopic part on the positioning assembly penetrates through a through hole on a bottom plate to be matched with a lock hole block arranged on the inner side of a guide rail, and the first word stock and the second word stock are positioned and locked at the corresponding work stop positions.
5. An automatic number plate production device as claimed in claim 4, wherein: the sensor is arranged at the bottom or the side surface of the bottom plate, and the station identification piece is fixedly arranged at the inner side or the outer side of the track below the bottom plate.
6. An automatic number plate production device according to claim 4 or 5, wherein: the sensor is a groove type photoelectric induction switch, the station identification piece is an L-shaped or T-shaped metal piece, and the switch is started when the station identification piece touches the groove type photoelectric induction switch.
7. A number plate automatic production device as claimed in claim 3, wherein: when the positioning components are multiple, the multiple positioning components act synchronously.
CN202320718747.5U 2023-04-03 2023-04-03 Automatic production device for number plate Active CN219193748U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320718747.5U CN219193748U (en) 2023-04-03 2023-04-03 Automatic production device for number plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320718747.5U CN219193748U (en) 2023-04-03 2023-04-03 Automatic production device for number plate

Publications (1)

Publication Number Publication Date
CN219193748U true CN219193748U (en) 2023-06-16

Family

ID=86708828

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320718747.5U Active CN219193748U (en) 2023-04-03 2023-04-03 Automatic production device for number plate

Country Status (1)

Country Link
CN (1) CN219193748U (en)

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